Chicken Parm Stuffed Zucchini

shredded mozzarella, divided

freshly grated Parmesan, divided, plus more for garnish

garlic, minced

marinara

fresh or frozen breaded chicken, cooked according to package instructions and diced

kosher salt

Freshly ground black pepper

zucchini, halved, seeds scooped out with a spoon

chopped parsley